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Pear pomace water extract reduces adiposity in vivo and in vitro by activating the AMPK-dependent pathway

Asian Pacific Journal of Tropical Biomedicine 2020年第5期10卷 208-215页

作者： Mi-Kyoung You Gwang-Woong Go Hwa-Jin kim Jin Rhyu hyeon-A kim Department of Nutrition and Health Sciences University of NebraskaLincolnNEUSA Department of Food and Nutrition Hanyang UniversitySeoulRepublic of Korea Department of Food and Nutrition Mokpo National UniversityJeollanam-doRepublic of Korea

Objective: To explore the inhibitory effect of water extract from pear pomace on abdominal fat accumulation and its underlying mechanism in high fat diet-fed animals. Methods: Three groups of male C57 BL/6 J mice were fed with a 60% kcal fat diet for 8 weeks. Pear pomace water extract(200 or 400 mg/kg body weight) was administered once daily via oral gavage. To confirm the possibility of the water extract of pear pomace acting as an activator of adenosine 5’-monophosphateactivated protein kinase(AMPK), differentiation of 3 T3-L1 preadipocytes was induced in the presence of the water extract of pear pomace with or without compound C. Body weight, food efficacy ratio, insulin resistance, and adipogenic protein expression were measured. Moreover, in the 3 T3-L1 cells, lipid content and lipogenesis-related proteins were measured using Oil Red O staining and Western blotting ***: Body weight gain and total abdominal fat weight were reduced in mice treated with pear pomace water extract. Pear pomace water extract reduced fasting blood glucose and insulin, thereby reducing the homeostatic model assessment of insulin resistance. It also resulted in dose-dependent decreases in triglyceride, total cholesterol, and low-density lipoproteincholesterol. The protein expression of p-AMPK increased, while the expression of AMPK-downstream proteins including PPAR-γ, C/EBPα, SREBP-1 c, ACC, and FAS decreased in the adipose tissue of mice treated with pear pomace water extract. Furthermore, the inhibition of AMPK by compound C blocked pear pomace water extract-induced reduction of lipid content and the expression of lipogenesis-related genes. Conclusions: Pear pomace water extract prevents fat accumulation both in vivo and in vitro by activating AMPK.

关键词： Pear pomace AMPK Compound C Obesity Insulin resistance

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Boosting electrocatalytic activity with the formation of abundant heterointerfaces and N, S dual-doped carbon nanotube for rechargeable Zn-air battery

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Journal of Energy Chemistry 2023年第9期84卷 140-152页

作者： Rin Na Kyeongseok Min Hyejin kim Yujin Son Sang Eun Shim Sung-hyeon Baeck Department of Chemistry and Chemical Engineering Education and Research Center for Smart Energy Materials and ProcessInha UniversityIncheon 22212Republic of Korea

Herein,a facile synthetic strategy is proposed to fabricate high-performance electrocatalysts for rechargeable Zn-air batteries(ZABs).Heterostructured NiCo/NiCo_(2)S_(4) nanoparticles encapsulated in N-,S-co-doped CNT(NiCo/NiCo_(2)S_(4)@NSCNT) are synthesized via co-precipitation,thermal carbonization,and partial sulfidation *** strongly coupled NiCo/NiCo_(2)S_(4) heterostructure can improve the redox property and charge transfer ***,the CNTs with abundant foreign dopants provide high electrical conductivity and abundant defect sites for both the oxygen evolution reaction(OER) and oxygen reduction reaction(ORR).The prepared NiCo/NiCo_(2)S_(4)@NSCNT electrocatalyst exhibits a low overpotential of 349 mV at a current density of 10 mA cm-2 and a half-wave potential of 0.865 V for the OER and ORR,***,the ZAB assembled using as-prepared NiCo/NiCo_(2)S_(4)@NSCNT can provide superior specific capacity(756.16 mA h g_(Zn)^(-1)],peak power density(155.82 mW cm^(-2)),and long-term cyclability compared to those of the precious metal-based electrocatalyst(Pt/C+RuO_(2)).

关键词： Bifunctional electrocatalyst NiCo alloy Bimetallic sulfide Heterojunction Zinc–air battery

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Are age, anthropometry and components of metabolic syndrome-risk factors interrelated with lower urinary tract symptoms in patients with erectile dysfunction？ A prospective study

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Asian Journal of Andrology 2007年第2期9卷 213-220页

作者： Jae-seung Paick Ji-Hyun Yang Soo-Woong kim Ja-hyeon Ku Department of Urology Seoul National University College of Medicine Seoul 111744 Korea Department of Urology Seoul Veterans Hospital Seoul 134791 Korea

Aim： To evaluate the effects of metabolic profiles on lower urinary tract symptoms （LUTS） in men with erectile dysfunction （ED）. Methods： A total of 75 impotent men aged 25-75 years old （mean 58.1 years） were included in the study on a prospective basis. Patients were evaluated with a complete history, physical examination, anthropometry and metabolic profiles. LUTS were assessed using the International Prostate Symptom Score （IPSS）. Results： Overall, there was no correlation between the IPSS and continuous parameters. However, when continuous variables were categorized, some parameters were significantly associated with LUTS. Patients with triglyceride level of 150 mg/dL or higher had more severe symptoms than those with tiglyceride levels less than 150 mg/dL （19.4±2.4 vs. 14.3±1.1, P = 0.033）. When 40 mg/dL was chosen as the high-density lipoprotein （HDL）-cholesterol cut-off level, the IPSS was significantly different between the two groups divided by 40 mg/dL （19.4±2.6 for HDL-cholesterol 〈 40 mg/dL vs. 14.4±1.0 for HDL-cholesterol 2 40 mg/dL, P = 0.042）. The area under the receiver operating characteristic curve （AUROCC） of triglyceride was 65.7% （95% confidence interval [CI], 52.6%-82.3%; P = 0.034） for severe LUTS. However, the AUROCC for ＇HDL-cholesterol＇ was not significant （area, 65.4%; 95% CI, 48.2%-82.7%; P = 0.062）. No other factors were determined to be significant in this regard. Conclusion： The results of the present study indicate that some metabolic profiles might influence LUTS in men with ED.

关键词： lower urinary tract symptoms erectile dysfunction metabolic syndrome body mass index testosterone

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Avoiding heating interference and guided thermal conduction in stretchable devices using thermal conductive composite islands

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Nano Research 2021年第9期14卷 3253-3259页

作者： seung Ji Kang Haeleen Hong Chanho Jeong Ju seung Lee Hyewon Ryu Jae-hun Yang Jong Uk kim Yiel Jae Shin Tae-il kim School of Chemical Engineering Sungkyunkwan University(SKKU)Suwon 16419Republic of Korea Department of Biomedical Engineering Sungkyunkwan University(SKKU)Suwon 16419Republic of Korea Biomedical Institute for Convergence(BICS) Sungkyunkwan University(SKKU)Suwon 16419Republic of Korea

The miniaturization and high integration of devices demand significant thermal management *** technologies for the thermal management of electronics show some limitations in the case of multiple chip arrays.A device in multiple chip array is affected by heat from adjacent devices,along with thermal conductive *** address this problem,we present a nano composite of aligned boron nitride(BN)nanosheet islands with porous polydimethylsiloxane(PDMS)foam to have mechanical stability and non-thermal *** islands of tetrahedrally-structured BN in the composite have a high thermal conductivity of 1.219 W·m^(-1)·K^(-1) in the through-plane direction(11.234W·m^(-1)·K^(-1)in the in-plane direction)with 16 wt.%loading of *** the other hand,porous PDMS foam has a low thermal conductivity of 0.0328W·m^(-1)·K^(-1) in the through-plane direction at 70%*** pathways are then formed only in the structured BN islands of the *** porous PDMS foam can be applied as a thermal barrier between structured BN islands to inhibit thermal interference in multiple device ***,this composite can maintain selective thermal dissipation performance with 70%tensile *** beauty of the work is that it could have guided heat dissipation by assembling of multiple layers which have high vertical thermal conductive islands,while inhibiting thermal *** selective heat dissipating composite can be applied as a heatsink for multiple chip arrays electronics.

关键词： selective thermal conduction non-thermal interference thermal conductive composite island stretchable electronics structured boron nitride nanosheet(s-BN) porous polydimethylsiloxane(p-PDMS)

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Right hepatectomy in living donors with previous abdominal surgery

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Hepatobiliary & Pancreatic Diseases International 2017年第1期16卷 33-38页

作者： Seong Hoon kim seung Duk Lee Young Kyu kim Sang-Jae Park Center for Liver Cancer National Cancer Center 111 Jungbalsan-ro Ilsandong-gu Goyang-si Gyeonggi-do 410-769 Korea

BACKGROUND： Few studies have evaluated the impact of previous abdominal surgery （PAS） on living donor right hepatectomy （LDRH）. The aim of this study was to investigate the outcomes of liver transplantation using right lobe grafts of living donors with PAS. METHODS： Data were reviewed from LDRH patients at the authors＇ institution between March 2008 and November 2014. LDRH patients with PAS were divided into two groups according to upper PAS （group 1） or lower PAS （group 2）, and they were compared to those without PAS （group 3） who were matched 1：1 based on age, gender, and body mass index. Periop- erative data, complications by the Clavien classification, and the outcomes with more than 14 months follow-up were compared. RESULTS： Twenty-three （4.9%） of a total of 471 LDRH donors had PAS. Eleven donors were assigned to group 1, 12 to group 2, and 23 to group 3. Intraperitoneal adhesions were found in 20 （87.0%） of 23 donors with PAS, of whom 5 （21.7%） had adhesiolysis-related injuries that happened more commonly in group 1 than in group 2 （P=0.025）. LDRH was successfully completed under upper midline laparotomy in all donors. No donors received perioperative blood transfusion. The peak postoperative AST, ALT, INR, and total bilirubin levels made no difference between the three groups. Compared with group 3, groups 1 and 2 had a longer operative time （P=0.012） and a higher grade I complication rate （P=0.047）. All donors recovered fully to their routine activities. The 23 recipients of grafts from donors with PAS showed good liver function with 1-year graft and patient survivals of 100%. CONCLUSION： A history of PAS is not a contraindication to LDRH in the current era of advanced surgical techniques.

关键词： living donor liver transplantation liver surgery liver function

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Conversion of twice-daily to once-daily tacrolimus is safe in stable adult living donor liver transplant recipients

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Hepatobiliary & Pancreatic Diseases International 2015年第4期14卷 374-379页

作者： Seong Hoon kim seung Duk Lee Young Kyu kim Sang-Jae Park Center for Liver Cancer National Cancer Center 111 Jungbalsan-ro Ilsandong-gu Goyang-si Gyeonggi-do 410-769 Korea

Once-daily extended-release tacrolimus （Tac-OD） has been introduced as a useful therapeutic option to increase patient adherence to immunosuppressive therapy. This study aimed to evaluate the safety, efficacy and immunosuppressant adherence of conversion from twice-daily tacrolimus （Tac-BID） to Tac-OD in stable adult living donor liver transplant （LDLT） recipients in a single institution. METHODS： Between February and May 2013, Tac-BID was converted to Tac-OD in recipients followed up for at least 12 months after transplantation and without previous rejection episodes. The switching policy was based on a dose ratio of 1：1 with dose adjustment target trough levels at 3-5 ng/mL. Tacro- limus trough levels, laboratory parameters, metabolic disor- ders, and adverse events were assessed. RESULTS： A total of 229 patients were enrolled in the study. The median age at conversion was 53 years （range 31-73）. The median transplant duration was 35.3 months （range 12.0-95.4）. During a median follow-up of 13.5 months after conversion, 9 patients returned to Tac-BID because of adverse events. No acute rejection episodes were observed. Of 214 patients still on Tac-OD at 12 months, 12 （5.6%） received a reduced dose and 95 （44.4%） required an increased dose over baseline. Overall adherence was 82.2% at the end of follow-up. CONCLUSION： The conversion from Tac-BID to Tac-OD with similar target trough levels after conversion is safe and effec- tive for long-term stable LDLT patients.

关键词： liver transplantation living donor immunosuppressive agents tacrolimus

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Protective Effect of Brassica napus *** against Inflammation Response in RAW 264.7 Cells

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Chinese Journal of Integrative Medicine 2021年第4期27卷 273-279页

作者： Su-hyeon Cho Song Rae kim Myeong Seon Jeong Miri Choi SeonJu Park Kil-Nam kim Chuncheon Center Korea Basic Science InstituteChuncheon(24341)Republic of Korea

Objective:To demonstrate the anti-inflammatory activity of Brassica napus ***(BNH)in lipopolysaccharide(LPS)-stimulated RAW 264.7 ***:Composition analysis of BNH was conducted via gas chromatography-mass spectrometry after BNH were *** nitric oxide(NO)production was measured using the Griess *** E2(PGE2)production was evaluated with enzyme-linked immunosorbent *** effects of BNH on LPS-induced pro-inflammatory enzymes including inducible nitric oxide synthase(iNOS)and cyclooxygenase-2(COX-2)were evaluated using Western blot ***,phosphorylation of nuclear factor-kappa B(N F-k B)and nuclear translocation of N F-k B p65 were evaluated with Western blot analysis and immunofluorescence staining,***:Compared with LPS-stimulated cells,BNH markedly decreased the generation of NO and PGE_(2)in LPS-stimulated RAW 264.7 cells(P<0.01 or P<0.05).Moreover,BNH inhibited protein levels of iNOS and COX-2(P<0.01).Phosphorylation of NF-k B and nuclear translocation of NF-k B p65 was significantly inhibited by BNH(P<0.01 or P<0.05).Conclusion:The anti-inflammatory activities of BNH were mediated via blockage of the N F-k B signaling pathways in LPS-stimulated RAW 264.7 cells.

关键词： Brassica napus L. inflammation lipopolysaccharide RAW 264.7 cells hydrosols

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Development of a Measurement System Far-IR Using a MCT Sensor

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Journal of Donghua University(English Edition) 2006年第5期23卷 80-82页

作者： Hangjin Cho seung-A Lee Jooyong kim Department of Textile Engineering Soongsil University Seoul Korea

The far-infrared radiation （Far-IR） has good effects on us, promoting the circulation of the blood and metabolic. So textile products including far-IR have been developed. But it is very difficult to measure the amount of far-IR in the textile quicHy and correctly. Newly developed Mercury Cadmium Telluride （MCT） sensor system could solve this problem.

关键词： far-lR frequency radiation MCT.

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Remote Navigation of Turtle by Controlling Instinct Behavior via Human Brain-computer Interface

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Journal of Bionic Engineering 2016年第3期13卷 491-503页

作者： Cheol-Hu kim Bongjae Choi Dae-Gun kim Serin Lee Sungho Jo Phill-seung Lee Department of Mechanical Engineering Korea Advanced Institute of Science and Technology (KAIST) 373-1 Guseong-dong Yuseong-gu Daejeon 34141 Republic of Korea School of Computing Science Korea Advanced Institute of Science and Technology (KAIST) 373-1 Guseong-dong Yuseong-gu Daejeon 34141 Republic of Korea Instituteforlnfocomm Research 1 Fusionopolis Way #21-01 Connexis (South Tower) 138632 Singapore

Brain-Computer Interface （BCI） techniques have advanced to a level where it is now eliminating the need lor hand-based activation. This paper presents a novel attempt to remotely control an animal＇s behavior by human BCI using a hybrid of Event Related Desynchronization （ERD） and Steady-State Visually Evoked Potential （SSVEP） BCI protocols. The turtle was chosen as the target animal, and we developed a head-mounted display, wireless communication, and a specially designed stimulation device for the turtle. These devices could evoke the turtle＇s instinctive escape behavior to guide its moving path, and turtles were remotely controlled in both indoor and outdoor environments. The system architecture and design were presented. To demon- strate the feasibility of the system, experimental tests were performed under various conditions. Our system could act as a framework for future human-animal interaction systems.

关键词： brain-computer interface turtle (Trachemys scripta elegans) remote navigation instinct behaviour escape be- havior

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Electrochemical characteristics of HVOF spray coated layer with WC-27NiCr and WC-10Co4Cr for Al bronze

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中国有色金属学会会刊：英文版 2012年第S3期22卷 753-759页

作者： Min-su HAN seung-jun LEE Min-sung kim Seok-ki JANG Seong-jong kim Division of Marine Engineering Mokpo Maritime University

Among the environmentally friendly marine energies,tidal current power plants require low cost because they do not need to construct a large *** power is particularly reliable energy source because the power generation capacity is predictable regardless of weather or *** materials or stainless steel have been used as materials of blades for current power ***,their strength and welding performance generated many problems in field *** alloys with excellent cavitation resistance and corrosion resistance were applied as blade materials to improve the durability of copper *** were coated with WC-27NiCr and WC-10Co4Cr using the high velocity oxy-fuel (HVOF) *** metal spray coating technology has the advantage in terms of the selection of materials for cost effectiveness and environmental effects of corrosion because the properties of the coat layer can be controlled *** with WC-27NiCr and WC-10Co4Cr by HVOF,WC-27NiCr shows better corrosion resistance *** reason for this seems to be that corrosion resistance improves and a stable passive film forms due to the effects of Ni and Cr.

关键词： tidal power copper alloys HVOF coating corrosion resistance

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